Me

East - Survey and Modelling Study

Project Proposal

20 December 2019

Pevensey and Cuckmere Water Level Management Board

Document Title

East Hailsham - Survey and Modelling Study

Client Name: and Cuckmere Water Level Management Board

Document Title: Document Title

Document No.: Document No.

Revision: 1

Revision Date: 20 December 2019

Project/Proposal No: Project Number

Project Manager: Shauket Khan

Prepared By: Chris Munden

Approved By: Shauket Khan

File Name: East Hailsham Modelling Study - Jacobs Proposal

Jacobs U.K. Limited

Burderop Park Swindon SN4 0QD

T +44 (0)1793 812 479 www.jacobs.com

© Copyright 2019 Jacobs U.K. Limited. The concepts and information contained in this document are the property of Jacobs. Use or copying of this document in whole or in part without the written permission of Jacobs constitutes an infringement of copyright

Document No. i Document Title

Contents 1. Project Understanding ...... 1 2. Solution / Methodology ...... 2 2.1 Scope ...... 2 2.2 Task Breakdown...... 2 2.3 Deliverables ...... 4 2.4 Schedule / Programme ...... 4 3. Team ...... 6 3.1 Summary and Organogram ...... 6 3.2 Staff Bios ...... 6 4. Capability and Experience ...... 9 5. Commercial Offer ...... 11 5.1 Terms and Staff Rates ...... 11 5.2 Key Risks ...... 11 6. Safety / Quality Assurance ...... 13

Appendix A. Programme

Document No. ii Document Title

1. Project Understanding

The Pevensey and Cuckmere Water Level Management Board (PCWLMB) is responsible for managing water levels within its drainage district which consists of the Cuckmere River, the and the Combe Haven. Management of water levels within the drainage district is generally achieved by operating water control structures including pumping stations.

The PCWLMB is relatively recently formed and therefore does not yet have a strong understanding of its own network. As there is significant development proposed within the catchment there is a risk of increased volume of water entering the drainage network and changing how the PCWLMB operates its structures and pumps. The PCWLMB therefore needs to improve its understanding of its own network, the main river network and other third-party infrastructure.

We are excited at the prospect of working on this commission, which is for survey and modelling to aid that current understanding. The PCWLMB has 3 distinct areas of operation. This commission is the first phase of works and will cover the first of the 3 areas - Hailsham.

The commission is to undertake a scoping exercise to inform modelling extent and survey specification, develop survey scope (surveyor will be appointed directly by the PCWLMB) and update the existing Infoworks ICM model using the data already available and data obtained through the surveys.

PCWLMB approached Jacobs to submit a proposal for the project. We have resources immediately available for the scoping phase and have identified resources to carry out the subsequent survey and modelling phase.

Document No. 1 Document Title

2. Solution / Methodology

2.1 Scope

Jacobs have received and reviewed a copy of the scope entitled “Phase 1 Survey and Modelling: East Hailsham – Project brief”.

As per Section 2.10 of the scope document and based on previous discussions with PCWLMB, the project will be split into three distinct stages, as follows:

1. Data Gathering - Scoping study to inform the modelling extent and survey specification

2. Channel physical surveys

3. Hydraulic modelling

The below methodology has therefore been split into these three stages for ease of assessment and understanding. Through discussions at tender stage, Jacobs also obtained an extension for delivery and proposed that we would be able to provide better value for money by breaking the project into a scoping phase followed by a modelling phase. Based on the lack of information to scope the work for Stage 2 and 3, we suggest splitting the work into scoping/data gathering (Stage 1) and the other for the full project (Stage 2 and 3).

2.2 Task Breakdown

2.2.1 Stage 1 – Data Gathering

As soon as possible after appointment, Jacobs will submit a data request to the client to ensure that an initial review can take place before the first meeting.

Jacobs understand the data required before the inception meeting to be as follows: . Water Level Management Plan developed for the Pevensey Levels . Model . Asset data (IDB) . Ownership/responsibility – who owns/manages/is responsible for each asset . AIMS data (EA) . Relevant baseline GIS information where it exists (e.g. proposed/potential/likely development areas, environmental receptors, georeferenced asset database, georeferenced maintenance records) . Previous survey meta data (extent, type, location, date carried out etc)

Whilst we acknowledge that complete data set for all the above points may not be available, any relevant information will vastly improve the overall outputs. In addition, this list is not exhaustive and will be finalised post award, and any additional data that the client perceives as pertinent to the project will be welcomed. It is anticipated that the client will provide an Environment Agency contact to Jacobs, who will then be available to speak to us directly to facilitate the data request.

Jacobs will then undertake an initial data analysis prior to the inception meeting to understand what the extent of the data is (not necessarily to understand what the data is telling us at this stage). If possible, Jacobs will then run the existing model for a range of events to understand what is and what isn’t modelled, and produce some maps (e.g. asset performance, flood risk, water levels etc) as visual aids and points of discussion for the inception meeting.

Document No. 2 Document Title

After the initial review of all available data, Jacobs will request an inception meeting to be held at the client’s offices. The main purpose of the inception meeting would be to establish the following information: . Final agreed study area . Annotated model map showing key drivers, key assets, key requirements . Annotated maps showing areas of concern with model (known asset changes, known physical changes, concerns with control rules etc.)

Further data analysis will be defined by what Jacobs learn at the inception meeting. This is likely to include: . Model gap analysis – what is modelled, what isn’t modelled, and how critical the gaps are. . Model performance assessment and uncertainty mapping – whether the model is validated against any observed data, where is uncertainty in model performance or reliability is greatest . Analysis of maintenance records and / or asset performance mapping – whether specific assets need to be surveyed because they’re operating out of their performance envelope

For the sake of clarity, the data analysis at this stage will be very much on a ‘needs basis’. The intention is to spend limited time on data analysis so that we only focus on what are the most important aspects as agreed with Environment Agency (EA) and Internal Drainage Board (IDB) during the inception meeting.

The outputs of this data and model analysis will be a scoping report and a survey specification.

The scoping report will include the following: . Statement on current model suitability to meet the requirements of the client . Risk based recommendations for survey (essential, desirable, nice to have, not required) . Standard specification for survey, using the Environment Agency standard survey specification as a guide

The channel surveys might include (as necessary): . Topographic /river channel . Asset . Structure

A scoping workshop will be requested with the client to agree scoping recommendations before these are issued to third parties to ensure a “right-first-time” approach. The outcomes of the scoping workshop will be to agree a programme for survey and phase 2 modelling (See Section 2.2.2 below for further details). This workshop can be held as a teleconference or as a face-to-face, whichever is considered most appropriate by the project team.

It should be noted that Jacobs are aware of the environmental importance of the site and its designations including Special Area of Conservation (SAC), Site of Special Scientific Interest (SSSI) and a Ramsar site. However, it is assumed that there will be no specific environmental surveys (such as kick sampling, river corridor surveys etc.) required in this phase of the project.

Stage 1 Deliverables . Scoping report and survey specifications, delivered under lump sum contract

2.2.2 Stage 2 – Physical Surveys

After the survey scope has been agreed and finalised, this will signal the completion of Stage 1 and the start of Stage 2. Section 2.10 of the supplied scope states that “Channel surveys - the surveyor will be appointed directly by the Board”. Jacobs agree that this is best approach and will help to minimise consultant project management and administration costs.

Document No. 3 Document Title

The indicative programme included in Appendix A allows for 4 weeks from the inception meeting to the start of the survey. This will allow for any competitive tender period which the client may wish to engage in, plus the time for the selected surveyor to mobilise. The client is also expected to put in place any access arrangements for the surveyors during this period. A 6-week period is then assumed for the selected surveyor to complete the field surveys and supply data to the client. It should be noted that this is indicative, and like any survey work, may be subject to delays due to poor weather/high water levels particularly at the time of year they are being carried out (March/April). Therefore, this duration will be refined when quotations from survey companies are received.

Whilst Jacobs will not engage directly with the surveyors on a contractual basis, we have allowed for 2 days of technical supervision of the field survey supplier, the first anticipated to be near the start of the survey period and the second in the middle. The level of supervision deemed required can be finalised after Stage 1 is complete. This will ensure that any issues or questions which arise on site during the early stage can be answered promptly to avoid potential rework, and to give Jacobs (and the client) confidence that the surveyors are following the scope to produce the results requested.

Aside from the two proposed supervision days, it is expected that Jacobs input will be limited whilst the surveys are being carried out. Nevertheless, we will be available to answer queries during this time.

2.2.3 Stage 3 – Hydraulic Modelling

Upon completion of the surveys, it is anticipated that the surveyor will pass the data on to Jacobs via the client. Jacobs will then undertake a detailed review of the data. As the project covers a large area, a significant amount of data will be supplied. The team will devise a methodical approach for dealing with this data efficiently.

Using the topographic survey data, the existing model will be updated, run for a range of return periods and results exported. The modelling task assumes that the Infoworks ICM model is currently in a good state and only needs updating with new data, rather than a full rebuild.

It is assumed that the model run will consist of one model simulation batch with the following events: 1:30, 1:75, 1:100, 1:100+cc, 1:200 AEP with flood extent maps & pipe surcharge maps produced for each event.

As a final deliverable, a modelling report will be written which describes in detail how the model was built, the extent and quality of the data used, and a summary of the outputs written with both technical and non-technical audiences in mind.

The model itself will also be issued to the client as an appendix to the modelling report to allow PCWLMB to use it as a live information source.

2.3 Deliverables

Jacobs envisage a simple approach to deliverables to maximise time spent developing the model to a high standard. Therefore, this project will comprise three key deliverables: . Scoping report (Stage 1) . Survey specification (Stage 1) . Technical modelling report (Stage 3)

- The primary appendix to the modelling report is the updated model itself Each deliverable has a clear purpose and will be subject to Jacobs quality assurance process (see Section 6).

2.4 Schedule / Programme

A full indicative programme for the project is included in Appendix A. The programme assumes appointment in the first full week of January 2020, with the headlines as follows:

Document No. 4 Document Title

. 20 December 2019 – Proposal Submission . 10 January 2020 – Appointment and Contract Award . W/c 13 January 2020 – Project set up, submit data request, preliminary review of data . W/c 20 January 2020 – Inception meeting and data review . W/c 10 February 2020 – Survey scope issued to suppliers . 14 February 2020 – Completion of Stage 1 . Mid-March 2020 – Start of site surveys . End of April 2020 – Completion of site surveys . Early September 2020 – Issue of final report and model to client. The programme allows for a 1-week extension in starting the project due to submission date change from 16 December to 23 December 2019. Due to the holiday period, appointment is therefore assumed in the week commencing 6 January 2020. The scoping study and survey scope will therefore be complete in the week commencing 10 February 2020, one week later than stated in the original brief. This will have no impact on the planned completion date of 1 October 2020, with the Jacobs expecting to complete the project in early September 2020. It should be noted that the Stage 2 and 3 elements of the programme are indicative and is subject to review by both Jacobs and the client upon completion of Stage 1.

Document No. 5 Document Title

3. Team

3.1 Summary and Organogram

Jacobs has selected a highly-experienced team which have successfully worked together on similar projects involving both modelling and engineering design. We look forward to successfully delivering to the same high standard as has been recently delivered for other modelling studies. The proposed team is solely based in our Swindon office, delivering significant efficiencies associated with the team being located all in one place.

Our proposed teams’ skills and experience will be drawn together for delivering best value and efficiency on this project through: . strong leadership . dedicated resources . lean project management/continuous flow of work . collaborative/partnership approach . standardised reporting . use of experts/specialist inputs at site, during reporting and during reviews

Our project team have availability to fully meet the resource requirements for this project. The organogram shown below summarises the roles of the project team.

Client Project Jacobs Project Jacobs Project Manager Manager Principal Revai Kinsella Shauket Khan Phil Marsh

Assistant Project Techncial Lead Manager Andy McConkey Chris Munden

Modeller Graduate Senior Modeller Noemi Cascajosa Modeller Chris Weeks Perez Emily Perry

3.2 Staff Bios

The experience and project specific skills are shown below.

3.2.1 Shauket Khan – Project Manager

The project will be overseen by our Swindon based project manager, Shauket Khan. Shauket is fully conversant with the Jacobs project management process and has many years of experience in the industry and delivering

Document No. 6 Document Title

projects for a wide range of clients including the Environment Agency, local authorities and private clients. Shauket holds a PRINCE2 Foundation qualification and has experience in managing a large portfolio of projects and leading multi-disciplinary teams to deliver a broad variety of projects. He has delivered a number of schemes which include navigation, asset refurbishment and flood alleviation schemes. Shauket is fully aware of EA procedures and has always adhered to common goals of project delivery within programme and budget.

A chartered civil engineer, Shauket will see the bigger picture of what the client is expecting to do with the model after completion, to ensure it contains the most useful information possible.

3.2.2 Chris Munden – Assistant Project Manager

Chris will take the role of Assistant Project Manager throughout this project. Chris has worked with the project manager, Shauket Khan, for around 5 years and will be involved in the distribution of tasks to ensure the right people are working on the right tasks as efficiently as possible. At a reduced rate compared with the Project Manager, Chris will carry out many of the key tasks such as financial reporting and invoicing to run the project. He will also be available to attend key meetings to provide the project manager’s oversight, along with the technical modelling staff.

With 6 years’ experience and working towards Chartered civil engineer status, Chris has been involved in the production of outline business cases and design of flood alleviation schemes (FAS) including the Summer Lane FAS in North Somerset and the Whaddon FAS in Cheltenham. Each of these schemes required a hydraulic model to compare the baseline scenario with the scenario after the proposed scheme is in place, therefore Chris has a good understanding of the data inputs needed to build a good model and the outputs we should be seeking.

Chris has also undertaken Specialist Asset Surveys in the South West for the Environment Agency from 2017 to 2019. A key part of this was working with subcontractors to organise site surveys including topographic, bathymetric, confined space inspection and structural surveys to inform potential repairs.

3.2.3 Andy McConkey – Technical Lead

Andy is committed to water and environmental improvement. As a former full-time volunteer employee of Friends of the Earth and a former employee of the Environment Agency, Andy has spent the last 21 years working exclusively to protect and enhance the environment. Throughout his career, this has been achieved through sound technical analysis, partnership working and stakeholder engagement. Andy is an empathetic negotiator and will bring his experience delivering successful solutions in partnership with key stakeholders such as local authorities and water companies to this project.

Andy’s area of technical expertise is integrated catchment modelling and strategic water quality modelling. However, he has been managing multi-disciplinary projects that draw together expertise and contributions from across the water and environment sector for over five years. These include the Bangalore Water Masterplan, Upper Mole Floodmodeller™ river model and Infoworks ICM™ drainage and surface water model rebuilds for and Swindon Eastern Villages flood risk assessment and drainage masterplan for Swindon Borough Council.

Whilst Andy has sound experience of project management, he will instead take the role of technical lead in this project to ensure we make the best use of his specific technical Infoworks ICM expertise.

3.2.4 Chris Weeks – Senior Hydraulic Modeller

Over the past 23 years, Chris has successfully worked on a wide range of river modelling studies, including flood modelling and mapping, flood risk assessments, flood alleviation scheme design, broad scale modelling, low flow modelling and the development of flood forecasting models. Chris has significant experience and expertise in modelling free surface systems in 1D, 2D and 1D/2D modelling, using Flood Modeller (1D, 2D, FAST) and MIKE11.

Document No. 7 Document Title

Significant project experience includes Oxford FAS for the Environment Agency, Taiwan Flood Modelling and Mapping, and Somerset Levels and Moor modelling following the 2013-14 floods. Chris is very capable of leading a large team of modellers and his vast range of experience in different scales of projects using different modelling software packages will make him an important asset to the team.

3.2.5 Emily Perry – Graduate Hydraulic Modeller

Emily is a graduate hydraulic modeller with just over 1 year of industry experience. Since joining Jacobs, Emily has been involved in a wide range of projects, taking on different roles enabling her to expand her knowledge across different sectors of the business, namely in the Water and Environment, and Strategic Consulting Business units. Key experience includes the use of InfoWorks ICM on Gatwick Airport Surface Water Model Development project, and mapping various model outputs from Infoworks ICM to ensure clients can visibly see results and outputs.

As well as modelling, Emily has demonstrated her ability to work with large volumes of data efficiently, as demonstrated by her work on the Thames Weirs Capital Investment Plan project which involved interpretation of a number of condition surveys and reports to grade weirs in order of repair priority using a master spreadsheet.

3.2.6 Noemi Cascajosa Perez – Hydraulic Modeller

Noemi is a Chartered Water Environment Manager with seven years of experience in the industry. Since she joined Jacobs, Noemi has been involved in a wide range of projects working as a water engineer and assistant project manager.

Noemi has become a valuable resource for the business due to her experience gained as a hydraulic modeller using InfoWorks ICM. As a part of her role, she has created a fully integrated model for Covingham and Nythe area in Swindon that includes fluvial, surface water and sewer sources. She has worked with Chris and Shauket on Infoworks ICM for the Hearne Brook FAS in Cheltenham and Elmer Sands FAS in West . Noemi has also been heavily involved in the Infoworks ICM modelling for Gatwick Airport Limited, working with Andy and Emily, therefore has worked extensively with all members of the team on a range of projects.

After several successful projects, Noemi has become a go-to staff member in the Swindon office and beyond for any Infoworks ICM modelling task, big or small.

3.2.7 Phil Marsh – Project Principal

Phil Marsh will act as a Project Principal throughout this project. This role is a requirement of all Jacobs projects to ensure a high level of quality assurance. He will predominantly sit independently of the project team and will be brought in for a high-level reviews at the beginning, middle and end of key deliverables. Although Phil will not be working closely with the team day to day, his expertise will be invaluable to guide the team along the correct path at the appropriate time.

Over the last 17 years, Phil has worked with the Environment Agency and other clients on a variety of projects ranging from strategies, appraisals and detailed design for flood defence work. He has also worked on highway schemes, flow monitoring, weir refurbishment and removal for Water Framework Directive (WFD) improvements. Phil is fully conversant with the latest guidance for FRM and has also worked with local authorities, private companies, key infrastructure providers and water companies to deliver integrated FRM solutions. Phil has also assisted the Environment Agency with its emergency flood responses during and immediately after major events.

Phil has proven ability to overcome major technical difficulties though creative and wide-ranging value engineering exercises (e.g. Middle Tame). Extensive experience of working in environmentally sensitive areas, developing sustainable designs, soft engineering, sustainable construction methods, liaising with key stakeholders and helping source scheme funding (e.g. Perry Barr and Witton in Birmingham). Phil was also the project manager for the Oxford FAS led from the Swindon office, working closely with Chris Weeks throughout the modelling phase.

Document No. 8 Document Title

4. Capability and Experience

Exceat Bridge, UK, Highways

The proposed Jacobs team are currently undertaking modelling of the as part of redevelopment of Exceat Bridge near Seaford, East Sussex. As part of this we have been working with Pevensey and Cuckmere WLMB as a stakeholder in model scoping and development. PCWLMB have therefore seen our draft modelling reports and know that we are already developing a good understanding of how the main rivers interact with their system, which gives Jacobs a head-start when getting up to speed with the project.

Flood Modeller software, worldwide

Jacobs are the designers and distributors of the Flood Modeller™ software, used by engineers and modellers in the industry around the world. Therefore, the company have significant understanding and experience in hydraulic models and flood events.

The Jacobs Swindon office has hydraulic modellers available who run conferences and training sessions for other consultants and clients (including the Environment Agency) throughout the country. Whilst not all are part of the immediate project team, the expertise, ideas and suggestions which are available just across the room are not to be underestimated.

Gatwick Surface Water Model Development, UK, Gatwick Airport Limited

The aim of this project is to update and further develop the surface water model for Gatwick Airport. This includes building new surface water drainage infrastructure and expanding the complex drainage network beyond that which was originally modelled to increase the model accuracy. The model pushes the boundaries of what is possible within Infoworks ICM, being a fully integrated pollution control, drainage and river model, with complex real time controls that dictate how water is managed across the airfield based on internal and external factors, such as water quality and river level. The model outputs will also be used to help Gatwick make decisions about further flood storage structures to manage the risk of flooding, and to reduce the risk of wet weather pollution.

Jacobs have been Gatwick’s drainage modelling partner since 2013, and as part of this project are responsible for verifying existing and new survey data, verifying real time control rules, validating against an extensive 16- week flow survey, assessing the impact of Gatwick’s development plans on the drainage network, and supporting the EIA and Development Consent Order submission for Gatwick’s Northern Runway.

Avonmouth Severnside Enterprise Area ICM modelling, UK As part of an appraisal undertaken to promote economic development of the Avonmouth to Severnside Enterprise Area (ASEA), ICM modelling was undertaken to understand water flow and balance across the Lower Severn Internal Drainage Board (LSIDB). The aim of the project was to assess the capacity of fluvial outfalls within ASEA Area 3 and to inform economic appraisal of flood defence options.

The project worked with, and improved, the existing LSIDB InfoWorks ICM model of the inland surface water network of channels, ditches and rhines.

The model covers an area of approximately 50km2 and seven tide limited discharges to the Severn estuary. The outfalls discharge into the Severn Estuary, which is the third largest tidal range in the world. A key part of the modelling assessment was deciding what combined tidal, fluvial and surface water combined events should be assessed, to ensure that the tide locking effect on surface water level and flood risk was adequately modelled.

Document No. 9 Document Title

The outcome of the project was a strategic flood defence solution that reduces localised land-raising by developers, who will be more likely to invest in the area as they will not have to pay out for flood defence.

In total the project delivered the following benefits to the local economy:  Safeguarding existing economic activity already located in ASEA  Protecting 3,150 homes and businesses from extreme tidal/fluvial floods up to 2076  Supporting the safeguarding/unlocking of 12,000 jobs in ASEA by 2026  It is estimated that 575,000 square metres of employment floorspace will benefit from reduced flood risk relative to the Do-Nothing scenario  GVA safeguarded in the region of £252m relative to the Do-Nothing scenario and around 13,500 jobs will benefit from less disruption and temporary/permanent closure as a result of the same scenario  In terms of future economic benefits, the scheme will address market failure related to imperfect competition, development viability and the planning and environmental requirement to provide flood defence.  In total the scheme will help achieve 464,000 square metres of employment floorspace safeguarded/unlocked and £3.8 billion in net GVA safeguarded/unlocked at future/recent development across ASEA

Covingham and Nythe Initial Assessment, UK, Environment Agency

The study area is located in the Thames Administrative area and it is believed that a combination of different water sources such as fluvial, surface water and drainage have produced recurrent localised flooding in 2007, 2011, 2013 and 2016. Previous river modelling has failed to predict the extent of flooding that has occurred historically, and it is believed that the failure to properly model surface water flood pathways and water level blocking is one of the key factors. Therefore, an integrated surface water and river model was constructed in Infoworks ICM™ to better understand the combined / integrated risk.

As a part of the project scope, Jacobs are determining the most feasible options that can be taken forward for an Outline Business Case (OBC), which involves a full model build for the area that includes fluvial, surface water and sewer sources.

Document No. 10 Document Title

5. Commercial Offer

5.1 Terms and Staff Rates

Jacobs Terms of Agreement for Professional Services will apply to this proposal. A draft copy of the proposed contract is attached for your information.

At tender stage, an example contract used for a previous project under Jacobs Terms of Agreement for Professional Services was sent to the client project manager for information. The client project manager confirmed that they were happy with the contract but made the following comment “we would like to amend clause 10 to ensure that intellectual property rights are retained by the Pevensey and Cuckmere Water Level Management Board. This will allow us to make the hydraulic model and survey a live information we can use to inform our operations as and when any changes are required.” This will be accommodated into the final contract as per the request.

The project proposal is split into two distinct parts, the Stage 1 (scoping) stage and then the subsequent survey (Stage 2) and modelling (Stage 3), as the extent and therefore cost of the latter part is dependent on the amount of data available at scoping stage.

The Stage 1 (scoping stage) therefore comprises a fully costed lump sum fee of £11,500, including Jacobs staff costs, risks and expenses. This fee represents Jacobs formal offer to undertake the work for Stage 1. The full amount will be invoiced upon completion of Stage 1, on issue of the scoping report.

For Stage 2 and 3, an estimate of £25,000 has been produced to provide an indication of the expected cost, which equates to a total Jacobs spend on the project of £36,500. The price for Stage 2 and 3 is subject to review by both Jacobs and the client upon completion of Stage 1.

The proposed staff members and their rates are as follows:

Job Title Proposed Staff Members Charge Rate (per hour)

Project Manager Shauket Khan £85.00 Assistant Project Manager Chris Munden £45.00 Technical Lead Andy McConkey £75.00 Senior Modeller Chris Weeks £65.00 Project Modeller Noemi Cascajosa Perez £45.00 Graduate Modeller Emily Perry £40.00 Project Principal Phil Marsh £90.00

The above team is expected to work on the project in all stages. Should you require further breakdown of any of these costs or have queries regarding our submission, please do not hesitate to contact us.

5.2 Key Risks

The Stage 1 fee estimate is £11,500. Within this cost, the risk has been built up as follows: . Supplied data takes longer to review than originally forecast. It is assumed that data will predominantly be in the format described in the methodology section; if it is not then additional time to review is likely. . Model instabilities resulting in more run time during review stage. This is always a risk present in a modelling project, proposed mitigation is a preliminary data review before the initial model runs are carried out.

Document No. 11 Document Title

. General project management- more involved inputs. Project management inputs have been kept low on the assumption that minor issues can be addressed by the technical team. Risk covers additional PM involvement to resolve issues if required.

In addition, there are further general project risks across all stages which we have identified which remain as client held risks (not Jacobs risks). We see these key risks as: . The data which the client and EA hold is insufficient to provide a good picture of how the catchment operates, and therefore additional time may be required to gather this data. This includes insufficient AIMS data . Site survey costs higher than client envisaged after scoping stage is completed . Poor weather and/or high water levels during survey period resulting in delays to survey period . Environmental surveys are required, so far none have been allowed for nor instructed . Additional supervision of surveys required during survey stage. Jacobs have provisionally allowed for 1 day of supervision, any additional days are a client-held risk

Document No. 12 Document Title

6. Safety / Quality Assurance

Safety is of paramount importance for every Jacobs project. Whilst the work is primarily office based, this project is considered no different.

There will be some travel involved to visit the site and to attend meetings at the client offices, which Jacobs consider as a key risk. All travel will be planned using the Jacobs Travel Safe Plan of Action (TSPA) process. This ensures that all travel is carefully considered to ensure the safest and most reasonable approach, which may include approaches such as minimising driving by car sharing or using public wherever practical.

All site visit risk assessments will be prepared by a member of the project team and then be reviewed by one of our internal Health and Safety experts, before issue to the Pevensey and Cuckmere Water Level Management Board for information and approval in advance of the site visit. When visiting the survey contractor on site, we will also request to see and sign on to their RAMS and will advise the client if there are any improvements which we believe should be made.

Jacobs has a thorough quality assurance process which will be followed at all times throughout the project. The process followed is known as the CRA-V (Check, Review, Approve and Verification) process. The final deliverable is then verified by the Project Principal.

An example of how the CRA-V process will be used in this project is for the final modelling report. The originator will be a hydraulic modeller and will have their work checked by a senior project modeller. The work will then be reviewed by a Principal/ senior modeller and approved by the Project Manager. The verification will then be undertaken by the Project Principal.

Document No. 13 Document Title

Appendix A. Programme

Document No. ID Task Name Duration Start Finish Predecessors Dec '19 Jan '20 Feb '20 Mar '20 Apr '20 May '20 Jun '20 Jul '20 Aug '20 Sep '20 25 02 09 16 23 30 06 13 20 27 03 10 17 24 02 09 16 23 30 06 13 20 27 04 11 18 25 01 08 15 22 29 06 13 20 27 03 10 17 24 31 07 14 21 1 Pevensey & Cuckmere - Hailsham 184 days Mon 09/12/19 Fri 04/09/20 2 Award of Contract 19 days Mon 09/12/19 Fri 10/01/20 3 Prepare and submit the bid proposal 10 days Mon 09/12/19 Fri 20/12/19 4 PCWLMB Review & discussion to finalise the scope, and address any other 8 days Mon 23/12/19 Thu 09/01/20 3 queries 5 Award of Contract 1 day Fri 10/01/20 Fri 10/01/20 4 6 Project Management 165 days Fri 10/01/20 Fri 04/09/20 7 Change management 162 days Thu 16/01/20 Fri 04/09/20 12 8 Value (efficiency) register 162 days Thu 16/01/20 Fri 04/09/20 12 9 Weekly progress - Tele conference 162 days Thu 16/01/20 Fri 04/09/20 12 10 Fee notes & monthly progress reports & general communication 162 days Thu 16/01/20 Fri 04/09/20 12 11 Setup and sign off contract 0 days Fri 10/01/20 Fri 10/01/20 5 10/01 12 Project set up on internal systems 3 days Mon 13/01/20 Wed 15/01/20 11 13 Receipt of purchase order 5 days Mon 13/01/20 Fri 17/01/20 11 14 Stage 1 - Scoping 25 days Mon 13/01/20 Fri 14/02/20 15 Jacobs to submit quantified data request 2 days Mon 13/01/20 Tue 14/01/20 11 16 PCWLMB to provide JACOBS with requested data for each site 3 days Wed 15/01/20 Fri 17/01/20 15 17 Initial data analysis 2 days Mon 20/01/20 Tue 21/01/20 16 18 Inception meeting 1 day Wed 22/01/20 Wed 22/01/20 13,17 19 Review asset data in the marked catchment area 7 days Thu 23/01/20 Fri 31/01/20 18 20 Review InfoWorks model provided by client. Run if compatible. 7 days Thu 23/01/20 Fri 31/01/20 18 21 Develop topographic, structures and/or asset survey scope 7 days Mon 03/02/20 Tue 11/02/20 19,20 22 Preparaion of scoping report 7 days Mon 03/02/20 Tue 11/02/20 19,20 23 Review Phase 1 deliverables (CRAV process) 2 days Wed 12/02/20 Thu 13/02/20 21,22 24 Final scoping stage workshop 1 day Fri 14/02/20 Fri 14/02/20 23 25 Issue scoping report 0 days Fri 14/02/20 Fri 14/02/20 24 14/02 26 Completion of Stage 1 0 days Fri 14/02/20 Fri 14/02/20 25 14/02 27 Stage 2 – Physical Surveys (INDICATIVE) 50 days Fri 14/02/20 Tue 28/04/20 28 Review period for stages 2 and 3 to update the cost forecasts based on 10 days Mon 17/02/20 Fri 28/02/20 24 outputs from Stage 1 29 PCWLMB to issue scope to potential surveyors 0 days Fri 14/02/20 Fri 14/02/20 24 14/02 30 PCWLMB to arrange access for surveyors 20 days Mon 17/02/20 Fri 13/03/20 24 31 Tender/quote period 10 days Mon 17/02/20 Fri 28/02/20 29 32 Survey supplier mobilisation 10 days Mon 02/03/20 Fri 13/03/20 31 33 Preparation of RAMS etc. for survey supervision 5 days Mon 09/03/20 Fri 13/03/20 31FS+5 days,28 34 Site surveys and data provision 30 days Mon 16/03/20 Tue 28/04/20 30,32 35 Jacobs supervision day 1 on site (to be confirmed) 1 day Wed 18/03/20 Wed 18/03/20 33FS+2 days 36 Jacobs supervision day 2 on site (to be confirmed) 1 day Wed 08/04/20 Wed 08/04/20 35FS+14 days 37 Stage 3 – Hydraulic Modelling (INDICATIVE) 85 days Wed 29/04/20 Thu 27/08/20 38 Review data from topographic survey 10 days Wed 29/04/20 Wed 13/05/20 34,35,36 39 Update model 25 days Thu 14/05/20 Thu 18/06/20 38 40 Run model and export results 15 days Fri 19/06/20 Thu 09/07/20 39 41 Time Risk Buffer 10 days Fri 10/07/20 Thu 23/07/20 40 42 Write technical report on model results (including CRAV) 10 days Fri 24/07/20 Thu 06/08/20 41 43 PCWLMB review of report 5 days Fri 07/08/20 Thu 13/08/20 42 44 Revisions (if required) and final submission of report 10 days Fri 14/08/20 Thu 27/08/20 43 45 Planned Completion 0 days Thu 27/08/20 Thu 27/08/20 44 27/08 46 Float 5 days Fri 28/08/20 Fri 04/09/20 45 47 Completion 0 days Fri 04/09/20 Fri 04/09/20 46 04/09

Task Summary Inactive Milestone Duration-only Start-only External Milestone Critical Split Project: Wessex SAS and O&M Date: Thu 19/12/19 Split Project Summary Inactive Summary Manual Summary Rollup Finish-only Deadline Progress Milestone Inactive Task Manual Task Manual Summary External Tasks Critical Manual Progress

Page 1